The superior quality of the Kolinsky sable hair, points well and when loaded with water will return to it's original shape. Each brush head is secured with a gold plated seamless ferrule and is attached to a clear, acrylic handle with a watercolorist's scraper edge. The Kolinsky hair is immensely strong yet is also supple, springy and extremely resilient. Brushes are guaranteed for the life of the brush against defects in materials or manufacturing.